Shimano BB-UN300 Square Taper Bottom Bracket – BSA 73mm Shell, 122.5mm Spindle, Includes Fixing Bolt

Description

Shimano BB-UN300 Square Spindle 73mm Bottom Brackets make for a lasting replacement for square-tapered cranksets on English threaded bicycle frames.

• Fits JIS square-taper cranksets

• Includes crankarm fixing bolts

• Hollow spindle

• Frame Interface: BSA/English Threaded

• Spindle Interface: Square Taper JIS

• Bottom Bracket Shell ID: 1.37

• Shell Width: 73mm

• Spindle Lengths: 113mm, 118mm, 122.5mm

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